Summary

Software engineer with a strong system administration background from experiences administering corporate, academic, and research computation facilities, supporting students, faculty and staff, and managing and integrating network services. Experienced in installing, managing, and upgrading UNIX operating system.

Employment Experience

• Sendmail, Inc., Emeryville, CA
  March, 1998 to present
  • Chief Architect
    November, 2007 to present
    
    • Responsible for the product as a whole and the important design decisions that ensure the product's functional integrity.
    • Ensure that high level requirements are consistent, complete, correct, and operationally defined.
    • Ensure that components integrate and interact correctly and identify potential design flaws before they become a problem.
    • Review and validate all design specifications.
    • Key decision maker for the architecture and design changes based on feedback from the field, engineering, and executive management.
    • Research future product needs.
    • Provide feedback to product marketing for future product requirements.
    • Assess functionality requirements based on preliminary marketing requirements document.
    • Advise VP/Engineering in implementation of engineering processes with regards to specifications and engineering best practices.
    • Resource for engineer questions and mentoring.
  • Director, Strategic Technology
    November, 2006 to October, 2007
    
    • Evaluate, analyze, and perform technical assessment on potential partners and products for integration with Sendmail's offerings.
    • Provide technical research for possible product creation or integration.
    • Provide technical assistance to VP, Business Development for all technology partnerships as needed and assist the field with any partner product research or competitive information.
    • Interface with partners for technical presentations and lab evaluations.
    • Make recommendations for product road maps and product designs to both Product Marketing and Engineering.
  • Security Officer
    April, 2006 to present
    
    • Triage security incidents and determine security impact.
    • Act as the first point of contact, for coordinating and managing any necessary communication with the open source community and commercial customers.
    • Contact and communicate with external security groups (e.g., CERT).
    • Produce and publish security advisories and security notes.
  • Senior Network Security Administrator
    November, 2002 to November, 2006
    
    • Configure, troubleshoot, and manage network and security infrastructure including UNIX/Linux and Windows systems; local and remote office networks; Checkpoint FW-1, Cisco IOS, ipf, and ipfw firewalls; Checkpoint VPN-1 server; email and LDAP infrastructure; and RSA SecurID.
    • Hardware specification, installation, and troubleshooting including UNIX/Linux servers, Network Appliance file servers, various appliances, and network gear.
    • Beta testing Sendmail, Inc. software in production before general release to customers.
    • External product evaluation for both production use and potential partner purposes.
    • Help plan for system requirements, security issues, etc., for new projects as they come up.
    • Maintain CVS and Perforce source repositories and Bugzilla bug tracking server.
  • Principal Engineer
    July, 2000 to November, 2002
    
    • Continue role as lead engineer and MTA engineer.
    • Act as a major technical resource to others in the company.
    • Participate in Internet Engineering Task Force (IETF) on behalf of Sendmail.
  • Lead Engineer
    November, 1998 to July, 2000
    
    • Continue role as MTA engineer while providing support and advice to fellow engineers.
    • Assist engineering managers in project design and planning.
  • MTA Engineer
    March, 1998 to November, 1998
    • Software engineer for sendmail, an Internet standards-based mail transfer agent (MTA).
    • Design and implement a web-based graphical user interface for configuration and administration of sendmail.
    • Coordinate alpha and beta tests of both open source and commercial sendmail releases.
    • Provide on-going support to open source sendmail users via the Sendmail Consortium.
  
  
• Worcester Polytechnic Institute, College Computer Center, Worcester, MA
  Senior UNIX Systems Administrator, Academic Systems Integrator
  June 1992 to February, 1998
  • UNIX system administration including performing operating system upgrades and configuration, maintaining system and network security, installing software packages, and providing a homogeneous environment to the over 4200 users on 200+ computer systems.
  • Design and implement networked solutions to integrate Digital Ultrix, Digital UNIX, Sun Solaris, and Linux UNIX workstations, Novell Netware servers, NCD X terminals, and Microsoft Windows 3.X/95/NT and Apple Macintosh personal computers into campus network.
  • Assist in specifying, designing, implementing and managing residence hall network and dial-in modem services for off campus users.
  • Administer and maintain campus network services and Internet domain, including Cisco router configuration, electronic mail server, domain name server, and world wide web servers.
  • Help students, faculty, and staff with problems they encounter with computer systems; report verified troubles to vendors when appropriate.
  • Recommend policies on system use and services.
  • Advise other WPI departments on hardware and software which will best interoperate with WPI's network and the Internet.
  • Participate in beta tests and work with outside vendors on WPI related projects. Field test workstations, servers, peripherals, and operating systems for Digital Equipment Corporation. Beta test Free Software Foundation's GNU Emacs, Eric Allman's Sendmail, and Paul Vixie and Internet Software Consortium's BIND.
  • Act as technical liaison on WPI's behalf with GTE Internetworking and MCI Internet service providers.
  
  
• Sendmail Consortium, Berkeley, CA
  December 1996 to present
  • Assist in development of sendmail, including locating and fixing bugs, integrating modifications, and contributing new functionality.
  • Provide technical support to users with sendmail related problems and questions via the e-mail support addresses.
  • Assist in supporting the sendmail web pages and sendmail frequently asked questions (FAQ) document.
  • Perform alpha and beta testing of all open source sendmail releases as well as discuss future directions for sendmail.
  
  
• Consulting
  • Mayer Humi, Worcester, MA
    June 1997, January 1998
    • Installation and configuration of Digital UNIX workstation. Installation of GNU FSF utilities, Maple V, and other third party applications.
    • Installation and configuration of Redhat Linux 5.0.
  • C/W Mars, Paxton, MA
    November 1995 - January 1997; October 1997, December 1997
    • PC software installation, configuration, support, and training for transformation of existing wide area network from X.25/serial lines to TCP/IP running over a Bell Atlantic frame relay network.
    • Assist in configuration and maintenance of Solaris domain name server, electronic mail hub, and web server.
  • Coastal Web Online, Sacramento, CA
    June 1997
    • Sendmail configuration for mail domain support, m4 macro configuration, and check ruleset spam blocking.
  • Micro Electronics/MicroCenter, Hilliard, OH
    March 1997
    • Sendmail configuration for proper routing of mail between internal and external networks.
  • Becker College, Worcester, MA
    September 1996 - January 1997
    • Installation and maintenance of a Digital UNIX domain name server, electronic mail hub, USENET news server, and web server.
    • Creation of custom system account maintenance scripts.
  • Anna Maria College, Paxton, MA
    October 1996 - December 1996
    
    • Installation and maintenance of a Digital UNIX domain name server, electronic mail hub, user file server, and web server.
  • Christopher, Hays, Wojcik, & Mavricos, Counselors at Law, Worcester, MA
    April 1996
    • Research and recommendation of a solution for fax transmissions.
    • Novell Netware assistance and referral.
  
  
• Howard Hughes Medical Institute, Computer Services, Chevy Chase, MD
  Senior Network Administrator
  February 1995 to May 1995
  • Administer Sun Solaris UNIX server serving LAN X terminals, electronic mail, domain name service and Internet file transfers.
  • Administer Novell Netware 3.X servers, including a CD ROM server.
  • Install and configure LAN based software and hardware.
  • Resolve system, network, and user problems.
  • Implement solutions for users as directed by service requests.
  • Maintain security of client accounts and LAN resources.

Activities

• Author
  • sendmail 8.13 Companion by Bryan Costales, Gregory Neil Shapiro, Claus Aßmann, and George Jansen.
    Published by O'Reilly & Associates.
• BSDcon 2003 Program Chair
  September 8-12, 2003, San Mateo, CA
• BSDcon 2002 Program Committee and Session Chair
  February 11-14, 2002, San Francisco, CA
• Domain Name Reseller
  February, 2000 to present
  • Provide domain name registrations, transfers via a private registry.
  • Assist with or provide DNS setup and e-mail virtual hosting.
• DragonFlyBSD Committer
  September, 2003 to present
  • Primary responsibility is maintaining sendmail and associated infrastructure in DragonFlyBSD.
• FreeBSD Committer
  July, 2000 to present
  • Primary responsibility is maintaining sendmail and associated infrastructure in FreeBSD.
  • Commit fixes to various other userland applications.
• Papers and Talks
  • FREENIX Paper: "Sendmail Evolution: 8.10 and Beyond", with Eric Allman
    Presented at 1999 USENIX Technical Conference, June 6 - 11, 1999, Monterey, CA.
  • Talk: What's New in Sendmail 8.10
    O'Reilly Open Source Software Convention, August 21 - 24, 1999, Monterey, CA.
• Technical Reviews
  • sendmail, 2nd edition by Bryan Costales with Eric Allman.
    Published by O'Reilly & Associates.
  • sendmail, 3rd edition by Bryan Costales with Eric Allman.
    Published by O'Reilly & Associates.
  • sendmail Cookbook by Craig Hunt.
    Published by O'Reilly & Associates.
  • sendmail Milters: A Guide for Fighting Spam by Bryan Costales and Marcia Flynt.
    Published by Addison-Wesley Professional.
  • sendmail Performance Tuning by Nick Christenson.
    Published by Pearson Education.
  • UNIX System Administration Handbook, 3rd edition by Evi Nemeth, Garth Snyder, and Trent Hein.
    Published by Prentice Hall.
  • Linux Administration Handbook, 1st edition by Evi Nemeth, Garth Snyder, and Trent Hein.
    Published by Prentice Hall.
• Tutorials
  • USENIX Tutorial: What's New in Sendmail 8.10
    Taught at 2000 USENIX Technical Conference, June 18 - 23, 2000, San Diego, CA.
    Taught at 14th USENIX LISA Conference, December 3 - 8, 2000, New Orleans, LA.
  • USENIX Tutorial: Sendmail Security
    Taught at 15th USENIX LISA Conference, December 2 - 7, 2001, San Diego, CA.
    
• Volunteering
  • Frameline, San Francisco, CA
    September 1996 - January 1997
    • Upgrade network services for the Frameline office including new mail and web servers.
    • Assist in migration to virtual private server for web site.

Education

• Worcester Polytechnic Institute, Worcester, MA
  Bachelor of Science in Computer Science
  Graduated with distinction May 1992

Training

• University of California, Berkeley, CA
  Introduction to UNIX Kernel Internals
  December, 1998
• Network World, Framingham, MA
  CEU in Analyzing Broadband Networks: Implementing ATM, Frame Relay, and SMDS
  March 15, 1995

Languages and System Skills

• C, Perl, UNIX system and network programming, shell scripts, HTML, Emacs LISP.
• DNS, LDAP, NFS, TCP/IP, (E)SMTP, firewalls, VPN, and systems security.
• UNIX/Linux, Mac OS X, Microsoft Windows 2000/XP.
• Computer hardware including Sun workstations, generic PC hardware, and Apple Macintoshes.
• Familiar with various application packages running under UNIX/Linux, Windows, and Macintosh OS X.

Professional Societies

• IETF - Internet Engineering Task Force
• ISOC - Internet Society
• LOPSA - League of Professional System Administrators
• SAGE - System Administrators Guild
• Tau Beta Pi - Engineering Honor Society
• UPE - Upsilon Pi Epsilon Computer Science Honor Society
• USENIX - Advanced Computing Systems Professional and Technical Association